/**
 * Removes a number of objects from the array
 * 
 * @param from The first object to remove
 * @param to (Optional) The last object to remove
 */
Array.prototype.remove = function( /** Number */ from, /** Number */ to )
{
    var rest = this.slice( ( to || from ) + 1 || this.length );
    this.length = from < 0 ? this.length + from : from;
    return this.push.apply( this, rest );
};

/**
 * Removes a specific object from the array
 * 
 * @param object The object to remove
 */
Array.prototype.removeObject = function( object )
{
    for ( var i = 0; i < this.length; ++i )
    {
        if ( this[ i ] === object )
        {
            this.remove( i );
            break;
        }
    }
};

Utils = function()
{
    
    isLeftKeyPress = function( event )
    {
        return event.keyCode == Key.LEFT;
    };
    
};

Utils.prototype = new Utils;